Fanfare horns signal devices diagnosis, troubleshooting - AD54.35-P-5000A
MODEL 202 as of 1.6.97, 208 up to 31.7.99, 210.081 /281 up to 30.6.99, 210 as of 1.3.97 up to 30.6.99
| Fanfare horns signal devices diagnosis, advanced knowledge | AD54.35-P-2000A | ||
| Connecting Hand-Held Tester (HHT), reading out fault memory | AD00.00-P-2003A | ||
| Troubleshooting | |||
| Complaint | Possible cause | Note | Remedy/Test step |
| Horn inoperative | Cables | AD54.35-P-6000-01A | |
| Fanfare horns (H2) or FAN relay (K40/2k6) | AD54.35-P-6000-02A | ||
| Driver-side fuse and relay module (K40/2) | AD54.35-P-6000-04A | ||
| FAN switch (S4/2) | AD54.35-P-6000-08A | ||
| The following causes are only likely if other functions of the combination switch (e.g. direction indicators, wipers) are also faulty: | AD54.35-P-6000-03A | ||
| CAN data buses between driver-side signal acquisition and actuation module (SAM) (N10/1) and electronic ignition switch control module (electronic ignition key, N73) N10/1 N73 | AD54.35-P-6000-05A | ||
| HHT cannot communicate with electronic ignition key (N73) and SAM (N10/1) | Cable | AD54.35-P-6000-03A | |
| Electronic ignition switch control module (electronic ignition key, N73) | AD54.35-P-6000-05A | ||
| HHT cannot communicate with SAM | The following causes are only likely if other functions of the combination switch (e.g. direction indicators, wipers) are also faulty: | AD54.35-P-6000-08A | |
| CAN data buses between N73 and N10/1 Electronic ignition switch control module (electronic ignition key, N73) | AD54.35-P-6000-05A | ||
| Driver-side signal-acquisition and actuation module (SAM) (N10/1) | AD54.35-P-6000-03A | ||
| Horn (fanfare) also sounds when the FAN switch (S4/2) is not pressed | Cables |
AD54.35-P-6000-04A | |
| FAN switch (S4/2), horn/airbag clock spring contact (A45) | AD54.35-P-6000-06A | ||
| FAN relay (K40/2k6) |
AD54.35-P-6000-08A | ||
| The following causes are only likely if other functions of the combination switch (e.g. direction indicators, wipers) are also faulty: | AD54.35-P-6000-05A AD54.35-P-6000-03A |
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| CAN data buses between N73 and N10/1 Electronic ignition switch control module (electronic ignition key, N73) | |||
| Driver-side signal-acquisition and actuation module (SAM) (N10/1) |